Not Receiving KeyvaluePair in the response in Azure Invoice Parser using .Net Sdk

Question

   var client = new FormRecognizerClient(new Uri(endPoint), credential);
                Stream stream = file.OpenReadStream();
                var options = new RecognizeInvoicesOptions() { Locale = parserServiceLocale, Pages = { pageNumber.ToString() }, IncludeFieldElements = true };
                RecognizeInvoicesOperation operation = await client.StartRecognizeInvoicesAsync(stream, options);

Answer 1

Hi @Ashik Chittari,

Does the gif below is you want ?

Here is the sample code:

using Azure.AI.FormRecognizer.DocumentAnalysis;
using Azure;
using Microsoft.AspNetCore.Mvc;
using Azure.AI.FormRecognizer;
using Azure.AI.FormRecognizer.Models;

namespace signalr_iwa.Controllers
{
    public class TestController : Controller
    {
        private readonly IWebHostEnvironment _host;

        public TestController(IWebHostEnvironment host) {
            _host = host;
        }

        private async Task WriteSseEventAsync(HttpResponse response, string data)
        {
            await response.WriteAsync($"data: {data}\n\n");
            await response.Body.FlushAsync();
        }


        public async Task formrecognizer() {
            string endpoint = "https://myformrecognizer.cognitiveservices.azure.com/";
            string apiKey = "0631fa0****0f63723";
            var credential = new AzureKeyCredential(apiKey);
            var client = new FormRecognizerClient(new Uri(endpoint), credential);
            string invoicePath = Path.Combine(_host.WebRootPath, "pdf", "sample-invoice.pdf");
            using var stream = new FileStream(invoicePath, FileMode.Open);
            var options = new RecognizeInvoicesOptions()
            {
                IncludeFieldElements = true
            };
            var operation = client.StartRecognizeInvoices(stream, options);

            Response<RecognizedFormCollection> operationResponse = operation.WaitForCompletionAsync().Result;
            RecognizedFormCollection recognizedInvoices = operationResponse.Value;
            var response = Response;
            response.Headers.Add("Content-Type", "text/event-stream; charset=utf-8");
            foreach (var recognizedForm in recognizedInvoices)
            {
                Console.WriteLine($"Form type: {recognizedForm.FormType}");
                foreach (var field in recognizedForm.Fields)
                {
                    if (field.Value.ValueData != null) {
                        Console.WriteLine($"Field name: {field.Key}, Value: {field.Value.ValueData.Text}, Confidence: {field.Value.Confidence}");
                        await WriteSseEventAsync(response, $"Field name: {field.Key}, Value: {field.Value.ValueData.Text}, Confidence: {field.Value.Confidence}");
                        //await Task.Delay(800);
                    }
                }

            }
        }
    }
}

I save the pdf file under the wwwroot.

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Best regards,
Jason